Period Tracker app

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Track your period. Plan with confidence.

Clearblue® me is an easy-to-use period tracking app designed to help you plan for your period to help put you in control. 

Product features

Clearblue me-app

Calendar view

View your cycle and period prediction at a glance

Clearblue me-app

Cycle history

Compare how your cycles vary over time. View up to 6 previous cycles

Clearblue me-app

Period flow and symptom tracker

Identify trends in your cycle and across cycles

Clearblue me-app

Set personalized reminders

Get reminders when your period is due

Clearblue me-app

Learn more about your body

Let Clearblue® keep you informed about everything from periods to PMS, fertility and much, much more!



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    How to use the Clearblue® me app

    1. Get the app

    Click here or search ‘Clearblue me’ in the App Store. Clearblue® me is subscription-free with no hidden in-app purchases, so unlock all features for free!

    Clearblue® me app supports the latest version of iOS and the two previous versions. Not yet available on Android.

    2. Create a free account

    You need an account to use the Clearblue® me app.

    Your account allows you to store and securely back-up all of your data so it’s safe, even if you lose your phone.

    3. Enter a few details

    Simply add a few details like your last menstrual period and how long it lasted to get the predicted date of your next period.

    4. Start tracking!

    Keep logging your period to unlock your period predictions and cycle history. You can track symptoms and even set up helpful reminders.

    Frequently asked questions

    How do I log the start and end of my period?

    You can log your period via the Calendar or Track page.

    Calendar: tap the pink ‘log period’ button

    Track: tap ‘light’, ‘medium’ or ‘heavy’ period flow

    The current day and following days will be marked as your period, according to your period length. The end of your period will be logged automatically. If your period ends before this, tap the pink ‘period ended’ button. Any period flow days after the current day will be deleted.

    How do I edit or delete symptom data I have entered?

    1. Go to the (+) Track page and and navigate to the day you wish to edit. Alternatively, click on the day on the Calendar page

    2. To log, tap to select period flow or symptoms

    3. Tap again to unselect period flow or symptoms

    Note: only data within the current cycle can be edited. To delete data in a previous cycle, you must first delete the period flow in your current cycle. The deleted data will also be removed from the cloud.

    Why can’t I see when I’m fertile?

    The fertile window (the time when you can get pregnant) can vary quite a lot between cycles, even for women with regular menstrual cycles. A study has shown that using a calendar method predicts the correct fertile days in only a third of cycles1.

    An ovulation test can help you plan better if you want to get pregnant, as it will show when you have an LH surge (which happens 24-36 hours before ovulation), and there are even tests that also measure your estrogen levels so you get an even wider fertile window.

    What is a ‘normal’ cycle length?

    The first day of your period marks the first day of your menstrual cycle (day 1). A normal cycle should last between 21 and 35 days but women may experience short cycles (fewer than 21 days) or long cycles (more than 35 days). Every woman and their cycles are unique. Your cycle can also vary from month-to-month. This may be due to the natural variation in your cycles but also environmental factors like stress or over-exercising. In fact, in a recent 2020 study, 52.3% of women sampled had cycle lengths that varied by 5 or more days and fewer than 1% of women had the same cycle length across four consecutive cycles2

    When setting up your Clearblue® me app, you can select between 10 and 60 days as your average cycle length.

    Want to compare your cycles? Keep logging your period to unlock cycle history in more.


    Cycle history calculates the average cycle length across 6 previous cycles.

    How long should my period last?

    A period usually lasts between 3 to 8 days, with the average period lasting 5 days. Many women report that their heaviest bleeding happens in the first two days.

    When setting up your Clearblue® me app, you can select between 1 and 10 days for your usual period length. Don’t worry, if one time your period is shorter or longer than usual, you can edit it on your Calendar or within the Track page.

    Keep logging your period to unlock cycle history in more.


    Cycle history calculates the average cycle length across 6 previous cycles.

    In the days leading up to your period, you may experience headaches, breast tenderness or premenstrual symptoms (PMS). You can log your symptoms in the Track page. Check out ‘Why should I track my period?’ for more info

    Why should I track my period?

    Many women track their periods on a regular basis. It can help you see your typical cycle length and you can work out if it’s regular. Tracking has many benefits, like helping you prepare for menstrual symptoms or plan for upcoming events, plus it can take some of the stress out of your period arriving when you least expect it.

    You can also track any symptoms related to your cycle, such as headaches, mood swings and appetite, plus it could help you monitor irregular periods, spotting, or any abnormal discharge over the course of your cycle. Charting your symptoms over time can help you work out potential triggers of your symptoms and could assist your doctor diagnose conditions such as PMS (premenstrual syndrome) and menstrual migraine, for example.

    Tracking your cycle is also useful if you are trying for a baby, as it can help you know when to take an ovulation test to predict your fertile days or when to take a pregnancy test.

    How do I sync my data?

    Your data will be automatically synced to your cloud account. What that means is if you change or lose your phone, you don’t have to worry about losing your data.

    To push a manual sync, tap on Menu


    My account > ‘Sync my data with cloud account’.


    How do I change my email or password?

    Tap on Menu


    My account >


    edit the field you wish to change.


    To change your email:

    1. Enter your new email and existing password and tap ‘save’
    2. Follow the link in the email we’ll send you
    3. Go back to the Clearblue® me app and sign in with your new details


    To change your password:

    1. Enter your new password (minimum 6 characters using upper and lower case letters and at least one number. No spaces.)
    2. Enter your old password for security reasons
    3. Sign into the Clearblue® me app with your new details 

    I forgot my password, how do I reset it?

    1. Tap ‘Forgotten your password?’ on the Sign In screen

    2. Enter your email address and tap ‘reset password’

    3. Follow the link in the email we’ll send you

    4. Enter your new password

    5. Go back to the Clearblue® me app and sign in with your new details

    How do I sign out of my account?

    Tap on Menu


    My account > ‘sign out’.

    To sign in, tap the ‘sign in’ button, enter your email and password, and you’ll see your data in the Calendar.

    Is my data secure?

    We collect and process data in line with relevant data protection laws and regulations applicable including the General Data Protection Regulation (GDPR) and California Confidentiality of Medical Information Act (CMIA). For all details about the collecting and processing of your data, see our Privacy Policy or contact [email protected]

    You can opt-in to receive emails, offers and coupons from Clearblue® and/ or Clearblue® trusted partners.

    We do not share your personal data except as described in our Privacy Policy.

    How old do I need to be to use Clearblue® me?

    You must be aged 16 or over to create a Clearblue® me account and use the app.

    How do I withdraw my consent?

    You can withdraw your consent to the processing of your health data anytime by contacting [email protected]

    If you consented to marketing communications and you no longer wish to receive marketing emails from us, an unsubscribe link will be included in all marketing communications we send you.

    Can’t find an answer?

    We have a dedicated team of trained expert product advisors for support at your fingertips (English & Spanish supported). If you have a product-related question, contact us via email at [email protected]

    If your question is medical rather than product related, please contact your healthcare provider. Clearblue® is unable to offer any medical advice and no information derived from the Clearblue® me app can be considered as giving medical advice. Contact your healthcare provider if you have medical concerns or feel unwell.

    Want to give feedback on the app?

    Your feedback will help us improve the app to better match your personal needs. 

    If you would like to provide feedback, please contact us via email at [email protected]

    1. Brezina PR., et al. Fertil & Steril (2011); 95(6): 1867-78
    2. Soumpasis I., et al. Hum Rep Open (2020); (2): 1-9